Results 21 to 30 of about 14,746 (160)

Features of the anatomical structure of leaves depending on the high-altitude growth of apricot in Dagestan

open access: yesТруды по прикладной ботанике, генетике и селекции, 2023
Background. The adaptive changes during the distribution of Prunus armeniaca L. in Dagestan are important for understanding microevolution, structural and functional differentiation processes of populations along environmental gradients based on the ...
D. M. Anatov   +3 more
doaj   +1 more source

Identification and Quantification of Naphthoquinones and Other Phenolic Compounds in Leaves, Petioles, Bark, Roots, and Buds of Juglans regia L., Using HPLC-MS/MS

open access: yesHorticulturae, 2021
The present study was designed to identify and quantify the major phenolic compounds in different Juglans regia L. (common walnut) tissues (leaves, petioles, bark, roots, buds), to define the compositions and contents of phenolic compounds between these ...
Aljaz Medic   +3 more
doaj   +1 more source

Celery and Celeriac: A Critical View on Present and Future Breeding

open access: yesFrontiers in Plant Science, 2020
Cultivated for the crispy petioles and round, fleshy, and flavored hypocotyl celery and celeriac have over two centuries of breeding history in Europe.
Silvia Bruznican   +5 more
doaj   +1 more source

Twist-to-Bend Ratios and Safety Factors of Petioles Having Various Geometries, Sizes and Shapes

open access: yesFrontiers in Plant Science, 2021
From a mechanical viewpoint, petioles of foliage leaves are subject to contradictory mechanical requirements. High flexural rigidity guarantees support of the lamina and low torsional rigidity ensures streamlining of the leaves in wind.
Max Langer   +9 more
doaj   +1 more source

Auxin effectively induces the formation of the secondary abscission zone in Bryophyllum calycinum Salisb. (Crassulaceae)

open access: yesActa Agrobotanica, 2016
We have found that auxin, indole-3-acetic acid (IAA) substantially induces the formation of the secondary abscission zone in stem and petiole explants and in decapitated stem and petiole after excision of blade in intact plants of Bryophyllum calycinum ...
Marian Saniewski   +4 more
doaj   +1 more source

Petiole-Lamina Transition Zone: A Functionally Crucial but Often Overlooked Leaf Trait

open access: yesPlants, 2021
Although both the petiole and lamina of foliage leaves have been thoroughly studied, the transition zone between them has often been overlooked. We aimed to identify objectively measurable morphological and anatomical criteria for a generally valid ...
Max Langer, Thomas Speck, Olga Speck
doaj   +1 more source

Anatomy of the endemic palms of the Near and Middle East: archaeobotanical perspectives

open access: yesRevue d'ethnoécologie, 2013
This study presents anatomical descriptors to identify stems and petioles of the Near and Middle East palms genera (Chamaerops, Hyphaene, Medemia, Nannorrhops, Phoenix).
Romain Thomas
doaj   +1 more source

The functional morphology of the petioles of the banana, Musa textilis [PDF]

open access: yesJournal of Experimental Botany, 2000
Bananas are among the largest herbs in the world and their lightweight petioles hold up huge leaves. This study examined how the petioles manage to achieve adequate rigidity to do this, while allowing extensive and reversible reconfiguration in high winds.
Ennos, A. R.   +2 more
openaire   +4 more sources

Petiole hyponasty: an ethylene-driven, adaptive response to changes in the environment [PDF]

open access: yesAoB PLANTS, 2011
Many plant species can actively reorient their organs in response to dynamic environmental conditions. Organ movement can be an integral part of plant development or can occur in response to unfavourable external circumstances. These active reactions take place with or without a directional stimulus and can be driven either by changes in turgor ...
Polko, Joanna K.   +3 more
openaire   +3 more sources

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